NiDCOM also announced various financial support packages for the returnees.
Mr Buhari expressed concern that the recent spike in airfares was causing hardship for travellers.
The unions, on Wednesday, disrupted flight operations to Owerri over alleged disruptions of their May Day rally by miscreants sponsored by Imo State government.
“We cannot access airports seamlessly. It has become an issue of abuse, indiscrimination and inhumane treatment.”
The power outage was caused by heavy downpour of rain, that came with fierce winds and storms.
“The upgrade of the CCTV surveillance monitoring systems has been concluded and operational at the MMIA and four other international airports.”
